body{ font-size: 12px; background: #f9b629; font-family:'微软雅黑';}
img{border:0}

.zjbg{position:relative;z-index:-10;max-width:100%;}
.wheel{width:540px; height:540px; position:relative; margin:50px auto; cursor:pointer;}
#disk{width:540px; height:540px; background:url(disk.png) no-repeat}
#start{width:526px; height:526px; position:absolute; top:9px; left:8px;}